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From Patrick McGuirk:
Test your perfect pitch.Hit the play button to play a random note.Then select what note you think it is.The note you select will be played for comparison sake, and the card will turn red if you're wrong or green if you're correct.Your score will increase a point if you're correct and decrease a point if you're wrong.Choose from 1 of 4 instruments for the notes, Piano, Guitar, Trumpet, Violin.Choose to display the notes in Music Notation or as letters if you aren't versed in Music Notation. I designed this for my young children knowing that it's much easier the younger you are. Since they can't read sheet music I added the option to match the letters.